At a glance
- Lens Specifications at a Glance
- Where It Works: List of 6 Compatible Models (with Specifications)
- Same Specifications — Why Choose Zorsika
- What to Watch Out for When Replacing the Lens
- Frequently Asked Questions
- Q: My projector isn't on the list of 6 models above — can I use the WJ12U?
- Q: Can this lens replace the original one?
- Q: Why choose Zorsika instead of the original?
- Q: What if the lens doesn't match the image size?
- Q: Is there an installation guide for the WJ12U?
- Q: How long is the lens warranty?
- Related Query Links
- Purchasing Inquiries
Zorsika WJ12U projector lens, matched to original optical specifications, compatible with PJ RU6708L, PJ RU6800L, PJ RU6808L, PJ RU6700L and other 6 Ricoh projectors.


The projector lens directly determines image size and clarity. The WJ12U covers 6 Ricoh models — check the list before replacing the lens to confirm compatibility.
Zorsika WJ12U Projector LensLens Specifications at a Glance
| Lens Model | WJ12U |
| Compatible Brand | Ricoh |
| Compatible Model Brightness | 7000–9600 lumens |
| Compatible Model Resolution | WUXGA 1920×1200 |
| Zoom Ratio | 1.6X |
| Throw Ratio | 0.62-0.8:1 |
| Applicable Panel Size | 0.67 inch |
| Number of Compatible Models | 6 |
The specifications above come from the Zorsika product database. Contact sales to request the complete technical datasheet.
Where It Works: List of 6 Compatible Models (with Specifications)
Below are the verified compatible models for the WJ12U (Ricoh projectors), with brightness, resolution, and zoom ratio listed for each:
| Projector Model | Brightness | Resolution | Zoom Ratio |
|---|---|---|---|
| PJ RU6708L | 8000 lumens | WUXGA 1920×1200 | 1.6X |
| PJ RU6800L | 8000 lumens | WUXGA 1920×1200 | 1.6X |
| PJ RU6808L | 8000 lumens | WUXGA 1920×1200 | 1.6X |
| PJ RU6700L | 7000 lumens | WUXGA 1920×1200 | 1.6X |
| WUL6680 | 8500 lumens | WUXGA 1920×1200 | 1.6X |
| WUL6690 | 9600 lumens | WUXGA 1920×1200 | 1.6X |
Note: Brightness, resolution, and zoom ratio are taken from the Zorsika product database (refer to the model nameplate/manual for accuracy); lens compatibility is based on the chassis interface and optical structure. For models not on the list, contact Zorsika technical support for confirmation.
Same Specifications — Why Choose Zorsika
For engineering lenses like the WJ12U, Zorsika benchmarks each item against the original optical parameters (focal length, throw ratio, lens group), with matching lens coating processes — sharp imaging, no blurry edges, ready to use once installed.
Zorsika's equivalent-spec replacement model fits 6 models including the Ricoh PJ RU6708L, PJ RU6800L, PJ RU6808L, PJ RU6700L, and WUL6680; enter WJ12U in the query system on the Zorsika official website to see the complete model compatibility list.
- Optical Benchmarking: Focal length, throw ratio, and lens group matched to original parameters
- Resolution Testing: Every unit tested before shipment, with traceable MTF data
- Coating Process: Lens coatings at the same grade as the original, reducing light loss
- Stable Supply: Supports bulk purchasing and project supply
In short: the lens is the optical core — don't gamble on image quality to save a few bucks. Zorsika projector lenses are manufactured to original drawings and offer a stronger overall value.
Note: Actual imaging performance depends on the projector's condition and installation environment. Before bulk purchasing, we recommend getting 1 unit for hands-on testing.
What to Watch Out for When Replacing the Lens
- Power off before replacing the lens: Always shut down and wait for the cooling fan to stop before removing or installing the lens, to avoid damaging the interface while powered.
- Don't touch the glass: Fingerprints and oil directly affect image quality — hold the lens by the barrel, not the glass. For dust, use an air blower gently; don't wipe dry with a cloth.
- Focus first, then tighten: After installing properly, test focus first, then tighten the fixing screws, to avoid image drift from loosening over long-term use.
- Keep the interface clean: Dust buildup on the mount and contacts causes poor contact — cleaning it while replacing the lens is a safer bet.
Frequently Asked Questions
Q: My projector isn't on the list of 6 models above — can I use the WJ12U?
A: The list covers verified models, not all of them. Engineering projectors of the same brand and generation often share the same lens interface. It's safer to send photos of the nameplate and original lens to Zorsika technical support for confirmation.
Q: Can this lens replace the original one?
A: The lens is the core of the projector's optical path and directly determines clarity and color. Zorsika lenses (see the specification table above for the model) benchmark each item against the original optical parameters (focal length, throw ratio, lens group), with matching lens coating processes — sharp imaging, no blurry edges. Ordinary replacement lenses often use standard glass elements with insufficient coating layers, making brightness loss and color shift obvious at a glance. For engineering and exhibition settings, Zorsika is the recommended choice.
Q: Why choose Zorsika instead of the original?
A: Zorsika lenses are manufactured to original optical drawings, with the lens group, coatings, and throw ratio benchmarked item by item, and every unit resolution-tested before shipment. Compared with the original, lead times are shorter and overall value is better; compared with other replacement lenses, optical quality is backed by data.
Q: What if the lens doesn't match the image size?
A: First confirm the model's lens interface and optical axis position, then choose a lens with the corresponding throw ratio based on the actual installation distance. If unsure, send the installation distance and screen size to Zorsika technical support and we'll help you choose.
Q: Is there an installation guide for the WJ12U?
A: Yes. The lens removal and installation steps for Ricoh models like these are basically the same. Contact Zorsika sales for illustrated or video instructions for your specific model.
Q: How long is the lens warranty?
A: All Zorsika projector lenses come with a 12-month warranty. For normal use and non-human-caused damage (such as impact, water damage, or unauthorized disassembly), you can contact after-sales service directly. The warranty period is based on the date on the shipment document.
Related Query Links
- Zorsika Technical Support Center
- Projector Brand and Compatible Model Lookup
- Projector Lamp / Lens / Air Filter Product Library
Purchasing Inquiries
For solution consulting, project proposals, or the complete model compatibility list for the Zorsika WJ12U, contact us via:
- Website: www.zorsika.com
- Phone: 0086-20-38551187
- Email: sales@zorsika.com
- Business Hours: Monday to Friday, 9:00-18:00
The lens models and compatible model data in this article come from the Zorsika product database. Data is continuously updated; please confirm with an actual quotation.